An arteriovenous fistula is an abnormal connection or passageway between an artery and a vein. It may be congenital surgically created for hemodialysis treatments or acquired due to pathologic process such as trauma or erosion of an arterial aneurysm.
This page contains content from the copyrighted Wikipedia article "Arteriovenous fistula"; that content is used under the GNU Free Documentation License (GFDL). You may redistribute it, verbatim or modified, providing that you comply with the terms of the GFDL.